With the 11" coil, I go right and left then to and fro. The target is usually always about an inch towards the tip from dead center. I have never had any problems PPing and can dig a a hole the size of a salad plate.
When I switch the QDPs 10" concentric onto the LRP, it is always dead center on PPing.
The PP button is somewhat sensitive, in that you have to maintain a constant pressure on it with your thumb. Don't push hard. A relaxed, with minimal exertion works best for me.
I have had many detectors. The LRP is a dream to hunt with when you take the time to know it. Most negatives I heard are from people who gave it a few hunts or tried to compare it to their more expensive units. But I have taken the time to understand my LRP, and can hunt with the best of them.
It does have an issue locking onto nickels. But with time, you can ID better by holding down the MODE button, thus placing it into a temporary AM mode that seems to ID better without as much segment travel. The AM mode on the LRP is the best I have ever seen.